MEAN WELL LPV-60-12 AC-DC Power Supply

1. Introduction

The MEAN WELL LPV-60-12 is a 60W single output switching power supply designed for various applications, including LED lighting. This unit converts alternating current (AC) to direct current (DC), providing a stable 12V DC output at 5 Amps. It features a wide input voltage range of 90-264 VAC and is fully encapsulated with an IP67 rating, making it suitable for both indoor and outdoor use. The LPV-60-12 is UL listed and classified as a Class 2 power transformer, ensuring safety and reliability.

2. Safety Information

Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Qualified Personnel: Installation and servicing must be performed by qualified personnel only.
• Power Disconnection: Always disconnect power at the circuit breaker before installing or servicing the unit.
• Proper Wiring: Ensure all wiring connections are secure and comply with local electrical codes. Refer to the wiring diagram for correct connections.
• Ventilation: Ensure adequate ventilation around the power supply to prevent overheating. Do not cover the unit.
• Environmental Conditions: Do not operate the unit beyond its specified temperature and humidity limits. The IP67 rating provides protection against dust and water immersion, but proper installation is crucial.
• Load Capacity: Do not exceed the maximum output current (5A) or power (60W) of the power supply. Overloading can cause damage and reduce lifespan.

3. Specifications

4. Setup and Installation

Refer to the technical diagram below for mechanical specifications, recommended mounting direction, and wiring details.

Figure 1: Technical Diagram of LPV-60-12 Power Supply

4.1 Mechanical Specification

The power supply measures 162.5 mm in length, 42.5 mm in width, and 32 mm in height. It includes mounting holes with a diameter of 3.6 mm for secure panel mounting. The input wires (AC/N Blue, AC/L Brown) are UL1015 18AWG, and the output wires (+V Red, -V Black) are UL1007 16AWG, both approximately 600mm long.

4.2 Recommended Mounting Direction

The unit should be mounted horizontally on a flat surface to ensure optimal heat dissipation and performance. Refer to the 'Recommend Mounting Direction' section in Figure 1 for visual guidance.

4.3 Wiring Instructions

Ensure power is disconnected before making any connections.

• Input Connection: Connect the AC input wires to your standard electrical outlet. The blue wire (AC/N) is for neutral, and the brown wire (AC/L) is for live.
• Output Connection: Connect the DC output wires to your 12V DC device. The red wire (+V) is for positive, and the black wire (-V) is for negative.
• Secure Connections: Ensure all wire connections are tight and properly insulated to prevent short circuits.

5. Operating Instructions

Once properly installed and wired, the LPV-60-12 power supply operates automatically. Apply AC power to the input, and the unit will provide a stable 12V DC output. No user adjustments are required for standard operation. Ensure the connected load does not exceed 60W to maintain optimal performance and longevity.

6. Maintenance

The LPV-60-12 power supply is designed for maintenance-free operation due to its fully encapsulated and sealed design. Regular maintenance is generally not required. However, consider the following:

• Periodic Inspection: Periodically inspect the unit and its wiring for any signs of damage, wear, or loose connections.
• Cleaning: If installed in a dusty environment, gently wipe the exterior of the unit with a dry cloth to remove any accumulated dust. Do not use liquids or abrasive cleaners.
• Environmental Check: Ensure the operating environment remains within the specified temperature range and that ventilation is not obstructed.

7. Troubleshooting

If the power supply is not functioning as expected, perform the following basic checks:

• No Output Power:
  • Verify that the AC input power is connected and active.
  • Check all input and output wiring connections for looseness or damage.
  • Ensure the load connected to the power supply does not exceed its 60W capacity. Disconnect the load and test the power supply independently if unsure.
• Intermittent Operation:
  • Check for unstable AC input voltage.
  • Ensure the ambient temperature is within the operating range and that the unit is not overheating. Refer to the derating curve in Figure 1.
• Output Voltage Issues:
  • Confirm the connected device requires 12V DC.
  • If the output voltage is significantly lower than 12V, the unit may be overloaded or faulty.

If troubleshooting steps do not resolve the issue, contact qualified service personnel or MEAN WELL customer support.

8. Performance Characteristics

The technical diagram (Figure 1) provides important performance characteristics:

8.1 Block Diagram

The 'Block Diagram' section in Figure 1 illustrates the internal architecture of the power supply, including the EMI filter, rectifiers, power switching, PWM control, detection circuit, and output voltage protection (O.V.P.) and overload protection (O.L.P.) mechanisms. The switching frequency (fosc) is 65KHz.

8.2 Derating Curve

The 'Derating Curve' in Figure 1 shows the relationship between the maximum permissible load percentage and the ambient temperature. It indicates how the power supply's maximum output capacity decreases as the ambient temperature rises, especially above 40°C for 230VAC input and above 30°C for 115VAC input. Operating within the shaded region ensures optimal performance and lifespan.

8.3 Static Characteristics

The 'Static Characteristics' graph in Figure 1 displays the load percentage relative to the input voltage at 60Hz. It demonstrates that the power supply maintains 100% load capacity across a wide input voltage range, typically from approximately 100V to 264V, ensuring stable operation under varying input conditions.

9. Warranty and Support

The MEAN WELL LPV-60-12 power supply comes with a manufacturer's 2-year warranty. This warranty covers defects in materials and workmanship under normal use and service conditions.

For warranty claims, technical support, or further assistance, please contact your product vendor or an authorized MEAN WELL distributor. Keep your purchase receipt as proof of purchase for warranty validation.